DragonFly BSD
DragonFly kernel List (threaded) for 2003-07
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Re: userapi: signals

From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 21 Jul 2003 11:59:17 -0700 (PDT)

:Any thought of how signals will be handled once there's nothing but 
:messages? For most cases, they could be done in the user API when you 
:Wait() on the system message port, but that won't stop a program that's 
:in an infinite (or just very long) loop.
:The easy solution would be to have a background thread that was always 
:live that just handled signals, either by sleeping on a port or by being 
:the interrupt handling thread for that process, no?

    There are a billion ways this could be handled.  I have no specific
    thoughts on the best way to do it at the moment.  I would prefer that
    the kernel not be aware of userland threading at all, though.  I want
    userland threading to be under the complete control of userland.

					Matthew Dillon 

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